Dolby Digital Plus is an advanced surround sound audio technology that's built into home theaters, smartphones, operating systems, and browsers.

Equipment with Dolby Digital Plus will unlock its full feature set, including 5.1- and 7.1-channel capability (depending on the program). If your system includes only Dolby Digital, you'll still get 5.1-channel surround sound, with the highest-quality Dolby Digital signal possible—Dolby Digital Plus content is easily converted to a traditional Dolby Digital signal.

Specifications

Offers cinema-style multichannel surround sound to home viewers

Maintains high quality at more efficient bit rates

Integrates scalability that allows the bit rate to be configured for a specific broadcast system

Enables stream mixing of the primary audio with the secondary audio, such as multiple language tracks

Allows broadcasters to offer advanced services such as audio description

Includes complete Dolby metadata support and backward compatibility with existing home equipment that has Dolby Digital audio

Supported by a wide range of professional products from leading companies